The Efficacy of Oxfendazole Against a Strain of Haemonchus contortus Resistant to Fenbendazole and Thiophanate

Authors

  • S.J.A. Msangi Faculty of Veterinary Medicine, Sokoine University of Agriculture
  • A.J. Ngomuo Faculty of Veterinary Medicine, Sokoine University of Agriculture
  • A.A. Kassuku Faculty of Veterinary Medicine, Sokoine University of Agriculture

Keywords:

Worms, Anaemia, Antimicrobial Resistance, Antihelmintics

Abstract

A critical controlled test was conducted to determine the efficacy of Oxfendazole against a strain of Haemonchus contortus isolated at Sokoine University of Agriculture (SUA) and known to be resistant to Fenbendazole and Thiophanate. A susceptible strain for comparison was obtained from Kimamba in Kilosa District. Based on post-mortem worm counts, the efficacy of Oxfendazole at the recommended dose of 5mg/kg body weight was 99.8% against Kimamba-strain but only 15% against SUA-strain. The results show that SUA-strain of H.contortus is highly resistant to Oxfendazole at the recommended dose

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Published

30-03-1990

How to Cite

Msangi, S., Ngomuo, A. and Kassuku, A. . (1990) “The Efficacy of Oxfendazole Against a Strain of Haemonchus contortus Resistant to Fenbendazole and Thiophanate”, Tanzania Veterinary Journal, 10(1), pp. 1–7. Available at: https://tvj.sua.ac.tz/vet2/index.php/TVJ/article/view/351 (Accessed: 28 April 2025).

Issue

Vol. 10 No. 1 (1990)

Section

RESEARCH ARTICLES

License

©Tanzania Veterinary Journal

It is prohibited to reproduce, distribute and/or adapt any part of the published contents/manuscript without permission of Tanzania Veterinary Journal. The corresponding author shall sign the copyright transfer and submit to Tanzania Veterinary Journal along with the submitted manuscript. The copyright transfer will be valid immediately after the acceptance of the manuscript for publication by Tanzania Veterinary Journal.

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